ash/wm/overview/scoped_window_copy.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_WM_OVERVIEW_SCOPED_WINDOW_COPY_H_
   6 #define ASH_WM_OVERVIEW_SCOPED_WINDOW_COPY_H_
   7
   8 #include "base/basictypes.h"
   9
  10 namespace aura {
  11 class Window;
  12 }
  13
  14 namespace views {
  15 class Widget;
  16 }
  17
  18 namespace ash {
  19
  20 class CleanupWidgetAfterAnimationObserver;
  21
  22 // ScopedWindowCopy copies a window and will clean up the copied layers after
  23 // the class goes out of scope and the last animation has finished.
  24 class ScopedWindowCopy {
  25  public:
  26   ScopedWindowCopy(aura::Window* target_root, aura::Window* src_window);
  27   ~ScopedWindowCopy();
  28
  29   aura::Window* GetWindow();
  30
  31  private:
  32   // A weak pointer to a copy of the source window owned by cleanup_observer_.
  33   views::Widget* widget_;
  34
  35   // A weak pointer to an animation observer which owns itself. When the
  36   // ScopedWindowCopy is destroyed The animation observer will clean up the
  37   // widget, layer and itself once any pending animations have completed.
  38   CleanupWidgetAfterAnimationObserver* cleanup_observer_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(ScopedWindowCopy);
  41 };
  42
  43 }  // namespace ash
  44
  45 #endif  // ASH_WM_OVERVIEW_SCOPED_WINDOW_COPY_H_